| Twice as dumb | 13 |
| Twice as frightful | 18 |
| Twice as perilous | 17 |
| Twice as profound? | 18 |
| Twice as spooky | 15 |
| Twice as unlikely | 17 |
| Twice as weird | 14 |
| Twice CCCI | 10 |
| Twice CCII | 10 |
| Twice CCLI | 10 |
| Twice CCLIII | 12 |
| Twice cinco | 11 |
| Twice cinq | 10 |
| Twice CLI | 9 |
| Twice cuatro | 12 |
| Twice DC | 8 |
| Twice DCCLI | 11 |
| Twice DCCLII | 12 |
| Twice DCL | 9 |
| Twice DCXXV | 11 |
| Twice DI | 8 |
| Twice DII | 9 |
| Twice DIII | 10 |
| Twice DLI | 9 |
| Twice DLII | 10 |
| Twice DLIII | 11 |
| Twice DLXXV | 11 |
| Twice doomed? | 13 |
| Twice DXXVI | 11 |
| Twice DXXVII | 12 |
| Twice DXXX | 10 |
| Twice five | 10 |
| Twice from thrice | 17 |
| Twice halved | 12 |
| Twice less than thrice | 22 |
| Twice LI | 8 |
| Twice LII | 9 |
| Twice LIII | 10 |
| Twice LXXVI | 11 |
| Twice LXXVII | 12 |
| Twice nueve | 11 |
| Twice or more (with "once") | 37 |
| Twice or thrice | 15 |
| Twice Oscar-nominated actress for "Camille Claudel" and "The Story of Adele H." | 99 |
| Twice penta | 11 |
| Twice penta- | 12 |
| Twice plus once | 15 |
| Twice quadri- | 13 |
| Twice quatre | 12 |
| Twice quattuor | 14 |
| Twice quinze | 12 |
| Twice removed from thrice | 25 |
| Twice sei | 9 |
| Twice spun-off TV show set in Vegas | 35 |
| Twice tetra | 11 |
| Twice tetra- | 12 |
| Twice the radius | 16 |
| Twice the radius: Abbr. | 23 |
| Twice tre | 9 |
| Twice tres | 10 |
| Twice tri- | 10 |
| Twice triple | 12 |
| Twice uno | 9 |
| Twice vier | 10 |
| Twice VII | 9 |
| Twice VIII | 10 |
| Twice XXVI | 10 |
| Twice XXVIII | 12 |
| Twice XXXI | 10 |
| Twice zwei | 10 |
| Twice, "Notorious" band | 33 |
| Twice, a cheerleader's need | 31 |
| Twice, a deadly African fly | 27 |
| Twice, a deadly fly | 19 |
| Twice, a Gabor | 14 |
| Twice, a guitar effect used by Hendrix | 38 |
| Twice, a lollipop brand | 23 |
| Twice, a musical about marriage | 31 |
| Twice, a nasty fly | 18 |
| Twice, a New York Times puzzle | 30 |
| Twice, a noted Chinese dissident/artist | 39 |
| Twice, a Ramone | 15 |
| Twice, a Robin Williams sitcom catchphrase | 42 |
| Twice, a sweet onion variety | 28 |
| Twice, a Teletubby | 18 |
| Twice, a thiamine deficiency | 28 |
| Twice, a tot's stomach | 26 |
| Twice, an English rock band | 27 |
| Twice, an urban clothing brand | 30 |
| Twice, Chinese dissident artist Ai's given name | 51 |
| Twice, in music | 15 |
| Twice, Robert Kennedy's assassin | 36 |
| Twice, to Tiberius | 18 |
| Twice-a-month event | 19 |
| Twice-a-month tide | 18 |
| Twice-baked bread | 17 |
| Twice-baked breads | 18 |
| Twice-beaten Joe Louis challenger | 33 |
| Twice-broadcasted TV show | 25 |
| Twice-chewed food | 17 |